sigmoid flexure

American  

noun

1. Zoology. an S -shaped curve in a body part.

2. Also called sigmoid colon.  an S -shaped curve of the large intestine between the descending colon and the rectum.

---

sigmoid flexure British  

noun

1. zoology an S-shaped curve, as in the necks of certain birds

---

Etymology

Origin of sigmoid flexure

First recorded in 1780–90

Example Sentences

The sigmoid flexure was adherent to the abdominal wall opposite the wound of exit, and a dark ecchymosed patch was found, but no perforation could be detected.

From Surgical Experiences in South Africa, 1899-1900 Being Mainly a Clinical Study of the Nature and Effects of Injuries Produced by Bullets of Small Calibre by Makins, George Henry

It is possible that a wound in the sigmoid flexure was present which had already closed at the time of operation.

From Surgical Experiences in South Africa, 1899-1900 Being Mainly a Clinical Study of the Nature and Effects of Injuries Produced by Bullets of Small Calibre by Makins, George Henry

The esophagus was on the right of the aorta, and the location of the two ends of the stomach was reversed; the sigmoid flexure was on the right side.

From Anomalies and Curiosities of Medicine by Pyle, Walter L. (Walter Lytle)

The loading and blocking of the sigmoid flexure come from too much activity or irritability, due to inflammation, of the upper half of the rectal tube.

From Intestinal Ills Chronic Constipation, Indigestion, Autogenetic Poisons, Diarrhea, Piles, Etc. Also Auto-Infection, Auto-Intoxication, Anemia, Emaciation, Etc. Due to Proctitis and Colitis by Jamison, Alcinous B. (Alcinous Burton)

The rectum, sigmoid flexure, caecum and colon are affected, and in this order, the cylindrical-celled form being the most common.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" by Various